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π-Stacking of rhodamine B onto water-soluble polymers containing aromatic groups |
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| Authors: | Ignacio Moreno-Villoslada Marlén Jofré Patricio Chandía Susan Hess Carlos Elvira Toshimichi Shibue |
| Affiliation: | a Instituto de Química, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja, Casilla 567, Valdivia, Region de Los Lagos, Chile b Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile c Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain d Materials Characterization Central Laboratory, School of Science and Engineering, Waseda University, Tokyo 169-8555, Japan e Department of Applied Chemistry, School of Science and Engineering, Waseda University, Tokyo 169-8555, Japan |
| Abstract: | Evidences of the π-stacking of rhodamine B onto poly(sodium 4-styrenesulfonate) are given by 1H NMR spectroscopy. As a consequence of these π-π interactions, changes on the diafiltration and UV-vis absorbance and fluorescence patterns are shown comparing water-soluble polymers containing aromatic rings as poly(sodium 4-styrenesulfonate) and poly(N-methacryloyl-5-aminosalicylic acid) with other polyanions that do not contain aromatic rings as poly(sodium vinylsulfonate) and poly(acrylic acid). |
| Keywords: | Rhodamine B Water-soluble polymers π-π Interactions |
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